Overview
HZAOC GDJW-100B high and low temperature alternating test chamber is suitable for the adaptability test of electrical, electronic products, components, parts and materials in high and low temperature environment storage, transportation and use, as well as temperature gradual change test, and can also conduct stress screening test on electronic components. The box adopts the overall structure, the inner side is 1.0mm SUS304B stainless steel plate, the outer side is 1.0mm Cold rolled steel plate spraying, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
Features
1. The box adopts the overall structure, the inner SUS304B stainless steel plate, the outer Cold rolled steel plate is sprayed, and the thermal insulation material is ultra-fine Glass thermal insulation cotton.
2. The door sealing is made of double-decked silicone rubber sealing material, and the observation window is a multi-layer conductive film tempered hollow Glass with built-in heating wire to prevent frost and lighting.
3. The side of the box is equipped with φ 50mm test hole, the stopper is silicone rubber low foam material, high and low temperature resistance and thermal insulation.
4. The heater adopts a porcelain frame nickel-chrome wire electric heater, which has little thermal inertia, long service life, and stable and reliable control.
5. The control system adopts LCD Touchscreen temperature and humidity controller and Schneider electrical components, and supports full Chinese menu operation.
6. The controller has a small display resolution of 0.01 ° C, supports fixed value and program operation, continuous PID control, 120 groups of setting programs, 99 steps per group.
7. With power failure recovery settings, real-time display of operating data, fault number display, multiple alarm functions and safety protection measures.
8. The cooling capacity adjustment adopts the shunt method, and the air supply method is the upper air supply and the lower air return.
Principle
The test chamber generates heat through the heater and the cooling system reduces the temperature to realize the simulation of high and low temperature environment. The control system adopts continuous PID control, and the heating and cooling are adjusted by solid state relays. The temperature transducer is placed in the trend to monitor the temperature. The air supply method is the upper air supply and the lower air return to ensure the temperature uniformity and control accuracy.
Applications
Electrical, electronic products, components, parts and materials of high and low temperature environmental adaptability test, temperature gradual change test, stress screening test
Steps
1. Turn on the power supply and check whether the voltage meets 380V +/- 10%.
2. Select the operation mode (set value or program operation) on the controller, and set the temperature parameters and program steps.
3. Call the pre-stored process Linear dispersion or write a new program name.
4. Start the equipment and monitor the real-time display of temperature, running time, and other data.
5. After the test is completed, power off the device.
Notice
• Power frequency must be stable at 380V +/- 10% when the equipment is running.
When setting up the program, pay attention to step connection and loop limit.
• When a fault occurs, find the cause according to the fault number displayed by the controller.
• Regularly check safety protection devices, such as over-temperature protectors, phase loss protection, etc.
• Avoid touching high or low temperature parts during operation to prevent burns or frostbite.
• Disconnect the power supply during equipment maintenance to ensure safety.
